From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86EE6C2D0A3 for ; Wed, 4 Nov 2020 15:26:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1F1282074F for ; Wed, 4 Nov 2020 15:26:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Ic0bmXoq"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="hweQ57R0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729992AbgKDP0g (ORCPT ); Wed, 4 Nov 2020 10:26:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726827AbgKDP0g (ORCPT ); Wed, 4 Nov 2020 10:26:36 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 166D1C0613D3; Wed, 4 Nov 2020 07:26:36 -0800 (PST) From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1604503594; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Mya6qnHxG9AXVPmFpoE4wa1heR7bPv0DOYb/oQLjAeo=; b=Ic0bmXoqTr6HTkP4cJAXSzV+J0goXTVrkQ/5tfYNXzl2DyYQUFumUr1ABimRUZwGamCmwg BBtE/evwgolSOA1fZ19uyk6iIf4ofFTZBGSQWq4gy3MKDTpO2ZrQGvTLWoMbm61TkSbF+0 fpLjAaUPHpRfYng642E160gp7/BlzZeAGati40fEaq85ZjLBF0aDVnG9nGXumYQ5MiEqCi pibjTckHZnWb/e/XQt3JpXvr4H3r1nN2iDUJNZveKC1olXKKlNMCXEodnB5CW+jqtDUzAC 2kCVEh/SsiGgyZUbcZLykpM9zQcWjfQyb3wxkHYb/TdvD4QoGu3g+5HkfMNRog== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1604503594; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Mya6qnHxG9AXVPmFpoE4wa1heR7bPv0DOYb/oQLjAeo=; b=hweQ57R00/7rF+4i5Iq4qtDckFFjTGC8CD76pnxn5H/D46dP0TdCmBWw5AGbUXvBd82rMl /hdRVyRfYiWpHTBw== To: Thomas Krause , Bjorn Helgaas , Kalle Valo Cc: Govind Singh , linux-pci@vger.kernel.org, linux-wireless@vger.kernel.org, Devin Bayer , ath11k@lists.infradead.org, Christoph Hellwig , David Woodhouse Subject: Re: pci_alloc_irq_vectors fails ENOSPC for XPS 13 9310 In-Reply-To: References: <20201103160838.GA246433@bjorn-Precision-5520> <874km61732.fsf@nanos.tec.linutronix.de> Date: Wed, 04 Nov 2020 16:26:34 +0100 Message-ID: <87mtzxkus5.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Wed, Nov 04 2020 at 14:04, Thomas Krause wrote: > config) but CONFIG_INTEL_IOMMU_DEFAULT_ON needed to be set manually. I > hope this helps, if there is more I can do to debug it on my side I'm > happy to do so. > [ 0.050130] DMAR: [Firmware Bug]: Your BIOS is broken; DMAR reported at address 0! > BIOS vendor: Dell Inc.; Ver: 1.1.1; Product Version: > [ 0.103693] DMAR: Host address width 39 > [ 0.103693] DMAR: DRHD base: 0x000000fed90000 flags: 0x0 > [ 0.103697] DMAR: dmar0: reg_base_addr fed90000 ver 4:0 cap 1c0000c40660462 ecap 69e2ff0505e > [ 0.103698] DMAR: DRHD base: 0x000000fed84000 flags: 0x0 > [ 0.103701] DMAR: dmar1: reg_base_addr fed84000 ver 1:0 cap d2008c40660462 ecap f050da > [ 0.103702] DMAR: DRHD base: 0x000000fed86000 flags: 0x0 > [ 0.103706] DMAR: dmar2: reg_base_addr fed86000 ver 1:0 cap d2008c40660462 ecap f050da > [ 0.103707] DMAR: DRHD base: 0x00000000000000 flags: 0x1 > [ 0.103707] DMAR: Parse DMAR table failure. which disables interrupt remapping and therefore the driver gets only one MSI which makes it unhappy. Not that I'm surprised, it's Dell.... Can you check whether they have a BIOS update for that box? Thanks, tglx